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Paha777 [63]
3 years ago
8

Sally wants to calculate how fast her little brother can run. What information does she need to know?​

Mathematics
2 answers:
White raven [17]3 years ago
6 0
Speed,distance i’m not 100% sure tho
Juliette [100K]3 years ago
6 0

Answer: If she's willing to calculate within mph, she needs to know a certain distance her brother can run, and how long it takes to run that distance.

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Two wires
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Step-by-step explanation:

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Give another name for line b
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line segment b

i don't know

Step-by-step explanation:

6 0
3 years ago
180=112+9x+5. Whats the value of X and why?
vovangra [49]

Answer:x=7

Step-by-step explanation:

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Collect like terms

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5 0
4 years ago
Here is a picture of a circle. Each square represents 1 square unit.
TEA [102]

Answer:

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7 0
3 years ago
Complete the statements about the key features of the graph of f(x) = x5 – 9x3. As x goes to negative infinity, f(x) goes to neg
Mars2501 [29]
The function is f(x)= x^{5} -9x ^{3}

1. let's factorize the expression x^{5} -9x ^{3}:

f(x)= x^{5} -9x ^{3}= x^{3} ( x^{2} -9)=x^{3}(x-3)(x+3)

the zeros of f(x) are the values of x which make f(x) = 0.

from the factorized form of the function, we see that the roots are:

-3, multiplicity 1
3, multiplicity 1
0, multiplicity 3

(the multiplicity of the roots is the power of each factor of f(x) )


2.  
The end behavior of f(x), whose term of largest degree is x^{5}, is the same as the end behavior of  x^{3}, which has a well known graph. Check the picture attached. 

(similarly the end behavior of an even degree polynomial, could be compared to the end behavior of x^{2})

so, like the graph of x^{3}, the graph of f(x)= x^{5} -9x ^{3} :

"As x goes to negative infinity, f(x) goes to negative infinity, and as x goes to positive infinity, f(x) goes to positive infinity. "

7 0
3 years ago
Read 2 more answers
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